Check Zippity’s thought’s on GB negatives here:
https://glp1forum.com/threads/can-we-talk-about-group-buys-here.17300/#post-174228
FYI, what most people consider GBs (usually on TG, hosted by one or a few admins, include testing, product discounts) he does not consider true GBs, which one of his requirements is complete price transparency, eg the organizer is not taking a cut, or (I assume) is at least telling folks what that cut is, what all $ goes toward, etc.
Edit: although I’ve bought from a lot of GBs, it’s all been recent so I have yet to receive product and therefore can’t really weigh in with any authority…except to say it’s a little addictive. I love a deal (the testing inclusion is where the real deal’s at IMO)…let’s see if I’m a fool! Check back in 2 months with me 🤣